Finding the Fourth Proportional to 160,138.10, 220,986.69 and 88,516.28
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Solution
The fourth proportional to 160,138.10, 220,986.69 and 88,516.28 is: 122,150.32
Step by Step Solution
- Step 1: Write the proportion equation
160,138.10 : 220,986.69 = 88,516.28 : x - Step 2: Convert to fraction form
160,138.10/220,986.69 = 88,516.28/x - Step 3: Cross multiply
160,138.10x = 220,986.69 × 88,516.28 - Step 4: Simplify right side
160,138.10x = 19,560,919,728.31 - Step 5: Solve for x
x = 19,560,919,728.31/160,138.10 - Step 6: Final answer
x = 122,150.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.